ID

VAR-201201-0018

CVE

CVE-2011-3919

TITLE

libxml2 Heap-based buffer overflow vulnerability

DESCRIPTION

Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors. libxml2 Contains a heap-based buffer overflow vulnerability.Service disruption by a third party (DoS) You may be put into a state or affected by other details. It supports multiple encoding formats, XPath analysis, Well-formed and valid verification, etc. This vulnerability has been confirmed in versions prior to Google Chrome 16.0.912.75. ========================================================================== Ubuntu Security Notice USN-1334-1 January 19, 2012 libxml2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 11.10 - Ubuntu 11.04 - Ubuntu 10.10 - Ubuntu 10.04 LTS - Ubuntu 8.04 LTS Summary: Applications using libxml2 could be made to crash or run programs as your login if they opened a specially crafted file. (CVE-2011-3919) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 11.10: libxml2 2.7.8.dfsg-4ubuntu0.1 Ubuntu 11.04: libxml2 2.7.8.dfsg-2ubuntu0.2 Ubuntu 10.10: libxml2 2.7.7.dfsg-4ubuntu0.3 Ubuntu 10.04 LTS: libxml2 2.7.6.dfsg-1ubuntu1.3 Ubuntu 8.04 LTS: libxml2 2.6.31.dfsg-2ubuntu1.7 After a standard system update you need to reboot your computer to make all the necessary changes. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 APPLE-SA-2012-05-09-1 OS X Lion v10.7.4 and Security Update 2012-002 OS X Lion v10.7.4 and Security Update 2012-002 is now available and addresses the following: Login Window Available for: OS X Lion v10.7.3, OS X Lion Server v10.7.3 Impact: Remote admins and persons with physical access to the system may obtain account information Description: An issue existed in the handling of network account logins. The login process recorded sensitive information in the system log, where other users of the system could read it. The sensitive information may persist in saved logs after installation of this update. See http://support.apple.com/kb/TS4272 for more information on how to securely remove any remaining records. This issue only affects systems running OS X Lion v10.7.3 with users of Legacy File Vault and/or networked home directories. CVE-ID CVE-2012-0652 : Terry Reeves and Tim Winningham of the Ohio State University, Markus 'Jaroneko' Raty of the Finnish Academy of Fine Arts, Jaakko Pero of Aalto University, Mark Cohen of Oregon State University, Paul Nelson Bluetooth Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: A local user may be able to execute arbitrary code with system privileges Description: A temporary file race condition issue existed in blued's initialization routine. CVE-ID CVE-2012-0649 : Aaron Sigel of vtty.com curl Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: An attacker may be able to decrypt data protected by SSL Description: There are known attacks on the confidentiality of SSL 3.0 and TLS 1.0 when a cipher suite uses a block cipher in CBC mode. curl disabled the 'empty fragment' countermeasure which prevented these attacks. This issue is addressed by enabling empty fragments. CVE-ID CVE-2011-3389 : Apple curl Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Using curl or libcurl with a maliciously crafted URL may lead to protocol-specific data injection attacks Description: A data injection issue existed in curl's handling of URLs. This issue is addressed through improved validation of URLs. This issue does not affect systems prior to OS X Lion. CVE-ID CVE-2012-0036 Directory Service Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8 Impact: A remote attacker may obtain sensitive information Description: Multiple issues existed in the directory server's handling of messages from the network. By sending a maliciously crafted message, a remote attacker could cause the directory server to disclose memory from its address space, potentially revealing account credentials or other sensitive information. This issue does not affect OS X Lion systems. The Directory Server is disabled by default in non-server installations of OS X. CVE-ID CVE-2012-0651 : Agustin Azubel HFS Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Mounting a maliciously crafted disk image may lead to a system shutdown or arbitrary code execution Description: An integer underflow existed in the handling of HFS catalog files. CVE-ID CVE-2012-0642 : pod2g ImageIO Available for: Mac OS X v10.6.8, Mac OS X Server v10.6.8 Impact: Viewing a maliciously crafted TIFF file may lead to an unexpected application termination or arbitrary code execution Description: A buffer overflow existed in ImageIO's handling of CCITT Group 4 encoded TIFF files. This issue does not affect OS X Lion systems. CVE-ID CVE-2011-0241 : Cyril CATTIAUX of Tessi Technologies ImageIO Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8 Impact: Multiple vulnerabilities in libpng Description: libpng is updated to version 1.5.5 to address multiple vulnerabilities, the most serious of which may lead to information disclosure. Further information is available via the libpng website at http://www.libpng.org/pub/png/libpng.html CVE-ID CVE-2011-2692 CVE-2011-3328 ImageIO Available for: Mac OS X v10.6.8, Mac OS X Server v10.6.8 Impact: Viewing a maliciously crafted TIFF file may lead to an unexpected application termination or arbitrary code execution Description: A buffer overflow existed in libtiff's handling of ThunderScan encoded TIFF images. This issue is addressed by updating libtiff to version 3.9.5. CVE-ID CVE-2011-1167 Kernel Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: When FileVault is used, the disk may contain unencrypted user data Description: An issue in the kernel's handling of the sleep image used for hibernation left some data unencrypted on disk even when FileVault was enabled. This issue is addressed through improved handling of the sleep image, and by overwriting the existing sleep image when updating to OS X v10.7.4. This issue does not affect systems prior to OS X Lion. CVE-ID CVE-2011-3212 : Felix Groebert of Google Security Team libarchive Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Extracting a maliciously crafted archive may lead to an unexpected application termination or arbitrary code execution Description: Multiple buffer overflows existed in the handling of tar archives and iso9660 files. CVE-ID CVE-2011-1777 CVE-2011-1778 libsecurity Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Verifying a maliciously crafted X.509 certificate, such as when visiting a maliciously crafted website, may lead to an unexpected application termination or arbitrary code execution Description: An uninitialized memory access issue existed in the handling of X.509 certificates. CVE-ID CVE-2012-0654 : Dirk-Willem van Gulik of WebWeaving.org, Guilherme Prado of Conselho da Justica Federal, Ryan Sleevi of Google libsecurity Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Support for X.509 certificates with insecure-length RSA keys may expose users to spoofing and information disclosure Description: Certificates signed using RSA keys with insecure key lengths were accepted by libsecurity. This issue is addressed by rejecting certificates containing RSA keys less than 1024 bits. CVE-ID CVE-2012-0655 libxml Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Viewing a maliciously crafted web page may lead to an unexpected application termination or arbitrary code execution Description: Multiple vulnerabilities existed in libxml, the most serious of which may lead to an unexpected application termination or arbitrary code execution. These issues are addressed by applying the relevant upstream patches. CVE-ID CVE-2011-1944 : Chris Evans of Google Chrome Security Team CVE-2011-2821 : Yang Dingning of NCNIPC, Graduate University of Chinese Academy of Sciences CVE-2011-2834 : Yang Dingning of NCNIPC, Graduate University of Chinese Academy of Sciences CVE-2011-3919 : Juri Aedla LoginUIFramework Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: If the Guest user is enabled, a user with physical access to the computer may be able to log in to a user other than the Guest user without entering a password Description: A race condition existed in the handling of Guest user logins. This issue does not affect systems prior to OS X Lion. CVE-ID CVE-2012-0656 : Francisco Gomez (espectalll123) PHP Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Multiple vulnerabilities in PHP Description: PHP is updated to version 5.3.10 to address several vulnerabilities, the most serious of which may lead to arbitrary code execution. Further information is available via the PHP web site at http://www.php.net CVE-ID CVE-2011-4566 CVE-2011-4885 CVE-2012-0830 Quartz Composer Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: A user with physical access to the computer may be able to cause Safari to launch if the screen is locked and the RSS Visualizer screen saver is used Description: An access control issue existed in Quartz Composer's handling of screen savers. This issue is addressed through improved checking for whether or not the screen is locked. CVE-ID CVE-2012-0657 : Aaron Sigel of vtty.com QuickTime Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Viewing a maliciously crafted movie file during progressive download may lead to an unexpected application termination or arbitrary code execution Description: A buffer overflow existed in the handling of audio sample tables. CVE-ID CVE-2012-0658 : Luigi Auriemma working with HP's Zero Day Initiative QuickTime Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Viewing a maliciously crafted MPEG file may lead to an unexpected application termination or arbitrary code execution Description: An integer overflow existed in the handling of MPEG files. CVE-ID CVE-2012-0659 : An anonymous researcher working with HP's Zero Day Initiative QuickTime Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Viewing a maliciously crafted MPEG file may lead to an unexpected application termination or arbitrary code execution Description: A buffer underflow existed in the handling of MPEG files. CVE-ID CVE-2012-0660 : Justin Kim at Microsoft and Microsoft Vulnerability Research QuickTime Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Viewing a maliciously crafted movie file may lead to an unexpected application termination or arbitrary code execution Description: A use after free issue existed in the handling of JPEG2000 encoded movie files. This issue does not affect systems prior to OS X Lion. CVE-ID CVE-2012-0661 : Damian Put working with HP's Zero Day Initiative Ruby Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Multiple vulnerabilities in Ruby Description: Ruby is updated to 1.8.7-p357 to address multiple vulnerabilities. CVE-ID CVE-2011-1004 CVE-2011-1005 CVE-2011-4815 Samba Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8 Impact: If SMB file sharing is enabled, an unauthenticated remote attacker may cause a denial of service or arbitrary code execution with system privileges Description: Multiple buffer overflows existed in Samba's handling of remote procedure calls. By sending a maliciously crafted packet, an unauthenticated remote attacker could cause a denial of service or arbitrary code execution with system privileges. These issues do not affect OS X Lion systems. CVE-ID CVE-2012-0870 : Andy Davis of NGS Secure CVE-2012-1182 : An anonymous researcher working with HP's Zero Day Initiative Security Framework Available for: Mac OS X 10.6.8, Mac OS X Server 10.6.8, OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: A remote attacker may cause an unexpected application termination or arbitrary code execution Description: An integer overflow existed in the Security framework. Processing untrusted input with the Security framework could result in memory corruption. This issue does not affect 32-bit processes. CVE-ID CVE-2012-0662 : aazubel working with HP's Zero Day Initiative Time Machine Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: A remote attacker may access a user's Time Machine backup credentials Description: The user may designate a Time Capsule or remote AFP volume attached to an AirPort Base Station to be used for Time Machine backups. Beginning with AirPort Base Station and Time Capsule Firmware Update 7.6, Time Capsules and Base Stations support a secure SRP-based authentication mechanism over AFP. However, Time Machine did not require that the SRP-based authentication mechanism was used for subsequent backup operations, even if Time Machine was initially configured or had ever contacted a Time Capsule or Base Station that supported it. An attacker who is able to spoof the remote volume could gain access to user's Time Capsule credentials, although not backup data, sent by the user's system. This issue is addressed by requiring use of the SRP-based authentication mechanism if the backup destination has ever supported it. CVE-ID CVE-2012-0675 : Renaud Deraison of Tenable Network Security, Inc. X11 Available for: OS X Lion v10.7 to v10.7.3, OS X Lion Server v10.7 to v10.7.3 Impact: Applications that use libXfont to process LZW-compressed data may be vulnerable to an unexpected application termination or arbitrary code execution Description: A buffer overflow existed in libXfont's handling of LZW-compressed data. This issue is addressed by updating libXfont to version 1.4.4. CVE-ID CVE-2011-2895 : Tomas Hoger of Red Hat Note: Additionally, this update filters dynamic linker environment variables from a customized environment property list in the user's home directory, if present. OS X Lion v10.7.4 and Security Update 2012-002 may be obtained from the Software Update pane in System Preferences, or Apple's Software Downloads web site: http://www.apple.com/support/downloads/ The Software Update utility will present the update that applies to your system configuration. Only one is needed, either Security Update 2012-002 or OS X v10.7.4. For OS X Lion v10.7.3 The download file is named: MacOSXUpd10.7.4.dmg Its SHA-1 digest is: 04c53a6148ebd8c5733459620b7c1e2172352d36 For OS X Lion v10.7 and v10.7.2 The download file is named: MacOSXUpdCombo10.7.4.dmg Its SHA-1 digest is: b11d511a50d9b728532688768fcdee9c1930037f For OS X Lion Server v10.7.3 The download file is named: MacOSXServerUpd10.7.4.dmg Its SHA-1 digest is: 3cb5699c8ecf7d70145f3692555557f7206618b2 For OS X Lion Server v10.7 and v10.7.2 The download file is named: MacOSXServerUpdCombo10.7.4.dmg Its SHA-1 digest is: 917207e922056718b9924ef73caa5fcac06b7240 For Mac OS X v10.6.8 The download file is named: SecUpd2012-002Snow.dmg Its SHA-1 digest is: 9669fbd9952419e70ac20109cf4db37f9932e9f8 For Mac OS X Server v10.6.8 The download file is named: SecUpdSrvr2012-002.dmg Its SHA-1 digest is: 34da2dcbc8d45362f1d5e3b1b218112a729ae1c3 Information will also be posted to the Apple Security Updates web site: http://support.apple.com/kb/HT1222 This message is signed with Apple's Product Security PGP key, and details are available at: https://www.apple.com/support/security/pgp/ -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.16 (Darwin) iQEcBAEBAgAGBQJPqtkzAAoJEGnF2JsdZQeee2MIAKAcBIY6k0LU2fDLThFoAgKh WkYpGmCwa7L6n02geHzWrUCK/P/0yGWzDDqLfKlKuKbXdEIRP2wZTlvrqZHLzNO/ nXgz3HN1Xbll8yVXrGMEsoTD23Q+2/ZKLGMlSDw3vgBTVi/g4Rcer4Eew5mTkaoA j4WkrzgVUIxCMrsWMMwu1SVaizBuTYbNVzCzV3JPF1H0zVtVKgwWjhTdOJ/RDksD sjZG1XIEqVyv1rNk5BtjxVPFaJGpf9mcHiH8XyKQ0bC6ToM2r3B++Layoc5k1K0V OxKGSfWOEbWi/KR6vlXyVbe7JnU7a/V0C25HXhnoMEtoTCleZACEByLVtBC87LU= =6Eiz -----END PGP SIGNATURE----- . CVE-2011-2821: A memory corruption (double free) bug has been identified in libxml2's XPath engine. This vulnerability does not affect the oldstable distribution (lenny). CVE-2011-2834: Yang Dingning discovered a double free vulnerability related to XPath handling. For the oldstable distribution (lenny), this problem has been fixed in version 2.6.32.dfsg-5+lenny5. For the stable distribution (squeeze), this problem has been fixed in version 2.7.8.dfsg-2+squeeze2. For the testing distribution (wheezy), this problem has been fixed in version 2.7.8.dfsg-7. For the unstable distribution (sid), this problem has been fixed in version 2.7.8.dfsg-7. CVE-ID CVE-2012-3722 : Will Dormann of the CERT/CC Apple TV Available for: Apple TV 2nd generation and later Impact: A malicious Wi-Fi network may be able to determine networks a device has previously accessed Description: Upon connecting to a Wi-Fi network, iOS may broadcast MAC addresses of previously accessed networks per the DNAv4 protocol. This issue was addressed by disabling DNAv4 on unencrypted Wi-Fi networks CVE-ID CVE-2012-3725 : Mark Wuergler of Immunity, Inc. CVE-ID CVE-2012-0682 : Apple Product Security CVE-2012-0683 : Dave Mandelin of Mozilla CVE-2012-3589 : Dave Mandelin of Mozilla CVE-2012-3590 : Apple Product Security CVE-2012-3591 : Apple Product Security CVE-2012-3592 : Apple Product Security CVE-2012-3678 : Apple Product Security CVE-2012-3679 : Chris Leary of Mozilla Installation note: Apple TV will periodically check for software updates. Alternatively, you may manually check for software updates by selecting "Settings -> General -> Update Software". To check the current version of software, select "Settings -> General -> About". Summary VMware ESX updates to ESX Service Console. Problem Description a. ESX third party update for Service Console kernel The ESX Service Console Operating System (COS) kernel is updated which addresses several security issues in the COS kernel. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2011-3191, CVE-2011-4348 and CVE-2012-0028 to these issues. Column 4 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available. VMware Product Running Replace with/ Product Version on Apply Patch ============= ======== ======= ================= vCenter any Windows not affected hosted * any any not affected ESXi any ESXi not affected ESX 4.1 ESX ESX410-201204401-SG ESX 4.0 ESX patch pending ** ESX 3.5 ESX not applicable * hosted products are VMware Workstation, Player, ACE, Fusion. See VMSA-2012-0006 for details. b. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-4008, CVE-2011-0216, CVE-2011-1944, CVE-2011-2834, CVE-2011-3905, CVE-2011-3919 to these issues. Column 4 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available. VMware Product Running Replace with/ Product Version on Apply Patch ============= ======== ======= ================= vCenter any Windows not affected hosted * any any not affected ESXi any ESXi not affected ESX 4.1 ESX ESX410-201204402-SG ESX 4.0 ESX patch pending ESX 3.5 ESX not applicable * hosted products are VMware Workstation, Player, ACE, Fusion. Solution Please review the patch/release notes for your product and version and verify the checksum of your downloaded file. ESX 4.1 ------- ESX410-201204001 md5sum: 7994635547b375b51422b1a166c6e214 sha1sum: 9d5f3c9cbc53a9e03524b9bf0935c71f3dadf620 http://kb.vmware.com/kb/2013057 ESX410-201204001 contains ESX410-201204401-SG and ESX410-201204402-SG 5. Change log 2012-04-26 VMSA-2012-0008 Initial security advisory in conjunction with the release of patches for ESX 4.1 on 2012-04-26. Contact E-mail list for product security notifications and announcements: http://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce This Security Advisory is posted to the following lists: * security-announce at lists.vmware.com * bugtraq at securityfocus.com * full-disclosure at lists.grok.org.uk E-mail: security at vmware.com PGP key at: http://kb.vmware.com/kb/1055 VMware Security Advisories http://www.vmware.com/security/advisories VMware security response policy http://www.vmware.com/support/policies/security_response.html General support life cycle policy http://www.vmware.com/support/policies/eos.html VMware Infrastructure support life cycle policy http://www.vmware.com/support/policies/eos_vi.html Copyright 2012 VMware Inc. All rights reserved. 5 client) - i386, x86_64 3. (CVE-2011-3905) Note: Red Hat does not ship any applications that use libxml2 in a way that would allow the CVE-2011-1944, CVE-2010-4008, and CVE-2011-2834 flaws to be exploited; however, third-party applications may allow XPath expressions to be passed which could trigger these flaws. The desktop must be restarted (log out, then log back in) for this update to take effect. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: mingw32-libxml2 security update Advisory ID: RHSA-2013:0217-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0217.html Issue date: 2013-01-31 CVE Names: CVE-2010-4008 CVE-2010-4494 CVE-2011-0216 CVE-2011-1944 CVE-2011-2821 CVE-2011-2834 CVE-2011-3102 CVE-2011-3905 CVE-2011-3919 CVE-2012-0841 CVE-2012-5134 ===================================================================== 1. Summary: Updated mingw32-libxml2 packages that fix several security issues are now available for Red Hat Enterprise Linux 6. This advisory also contains information about future updates for the mingw32 packages, as well as the deprecation of the packages with the release of Red Hat Enterprise Linux 6.4. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop Optional (v. 6) - noarch Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch Red Hat Enterprise Linux Server Optional (v. 6) - noarch Red Hat Enterprise Linux Workstation Optional (v. 6) - noarch 3. Description: These packages provide the libxml2 library, a development toolbox providing the implementation of various XML standards, for users of MinGW (Minimalist GNU for Windows). IMPORTANT NOTE: The mingw32 packages in Red Hat Enterprise Linux 6 will no longer be updated proactively and will be deprecated with the release of Red Hat Enterprise Linux 6.4. These packages were provided to support other capabilities in Red Hat Enterprise Linux and were not intended for direct customer use. Customers are advised to not use these packages with immediate effect. Future updates to these packages will be at Red Hat's discretion and these packages may be removed in a future minor release. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2012-5134) It was found that the hashing routine used by libxml2 arrays was susceptible to predictable hash collisions. Sending a specially-crafted message to an XML service could result in longer processing time, which could lead to a denial of service. To mitigate this issue, randomization has been added to the hashing function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2012-0841) Multiple flaws were found in the way libxml2 parsed certain XPath (XML Path Language) expressions. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. If an attacker were able to supply a specially-crafted XML file to an application using libxml2, as well as an XPath expression for that application to run against the crafted file, it could cause the application to crash or, possibly, execute arbitrary code. (CVE-2011-1944) An out-of-bounds memory read flaw was found in libxml2. A remote attacker could provide a specially-crafted XML file that, when opened in an application linked against libxml2, would cause the application to crash. (CVE-2011-3905) Red Hat would like to thank the Google Security Team for reporting the CVE-2010-4008 issue. Upstream acknowledges Bui Quang Minh from Bkis as the original reporter of CVE-2010-4008. All users of mingw32-libxml2 are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 645341 - CVE-2010-4008 libxml2: Crash (stack frame overflow or NULL pointer dereference) by traversal of XPath axis 665963 - CVE-2010-4494 libxml2: double-free in XPath processing code 709747 - CVE-2011-1944 libxml, libxml2: Heap-based buffer overflow by adding new namespace node to an existing nodeset or merging nodesets 724906 - CVE-2011-0216 libxml2: Off-by-one error leading to heap-based buffer overflow in encoding 735712 - CVE-2011-2821 libxml2: double free caused by malformed XPath expression in XSLT 735751 - CVE-2011-2834 libxml2: double-free caused by malformed XPath expression in XSLT 767387 - CVE-2011-3905 libxml2 out of bounds read 771896 - CVE-2011-3919 libxml2: Heap-based buffer overflow when decoding an entity reference with a long name 787067 - CVE-2012-0841 libxml2: hash table collisions CPU usage DoS 822109 - CVE-2011-3102 libxml: An off-by-one out-of-bounds write by XPointer part evaluation 880466 - CVE-2012-5134 libxml2: Heap-buffer-underflow in xmlParseAttValueComplex 6. Package List: Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/mingw32-libxml2-2.7.6-6.el6_3.src.rpm noarch: mingw32-libxml2-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-debuginfo-2.7.6-6.el6_3.noarch.rpm mingw32-libxml2-static-2.7.6-6.el6_3.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2010-4008.html https://www.redhat.com/security/data/cve/CVE-2010-4494.html https://www.redhat.com/security/data/cve/CVE-2011-0216.html https://www.redhat.com/security/data/cve/CVE-2011-1944.html https://www.redhat.com/security/data/cve/CVE-2011-2821.html https://www.redhat.com/security/data/cve/CVE-2011-2834.html https://www.redhat.com/security/data/cve/CVE-2011-3102.html https://www.redhat.com/security/data/cve/CVE-2011-3905.html https://www.redhat.com/security/data/cve/CVE-2011-3919.html https://www.redhat.com/security/data/cve/CVE-2012-0841.html https://www.redhat.com/security/data/cve/CVE-2012-5134.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRCujqXlSAg2UNWIIRAq0HAJ41YXDqlCpJkg97YuQmaF2MqKDIpACgn5j7 sLTqWGtUMTYIUvLH8YXGFX4= =rOjB -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce

AFFECTED PRODUCTS